Improvement in milk-cooling apparatus



ZASheetswSheet 1.

'V. P. 8v J. S. HILL.

Milk-Cooling Apparatus.

N0..-2.o6 ,1o8'. Patented July 16, 1878.

Wv'bzesses. S3 (SQ/m.

N.PETERS. PHDTO-LITMOGRAPHER. WASHINGTON. D c.

2 Sheets-Sheet 2..

V. P. 8v J. S. HILL. Milk-Cooling Apparatus.

N0. 206.108. Patented July 16, 187s.

Wfnesses. 17eme@ ny 41, MM

nUNITEn STATES PATENT OEEIoE.

VARNUM l?. HILL, OF HANNIBAL, AND JOHN S. HILL, OF MOIRA, NEW YORK.

IMPROVEMENT IN MILK-COOLING APPARATUS.

Specication forming part of Letters Patent No. 206,108, dated July 16, 1878 application iiled November 22, 1877.

.To all whom it may concern:

Be it known that we, VARNUM PARSONS HILL, of Hannibal, Oswego county, and JOHN SIAs HILL, of Moira, Franklin county, both in the State of New York, have invented certain new and useful Improvements in Apparatus for Cooling Milk, of which the following is a Y specification of an internal milk-box and discharging on top,

said spray-tube being in communication with an obstructed tube located within the central cooling-chamber, for supplying water to said tube. It also relates to the constructing of the cover of the milk-pan with an upwardly-extending rim, perforated at bottom to permit the water to run off, and having short tubes covered by glass caps for excluding air and condensing the vapor arising from themilk. It also relates to the manner of accommodating the pans for skimming convenient to the operator, through the medium of casters or rollers and other devices, to be more fully described in the following specification.

In the accompanying drawings, Figure l is a vertical section of my improved cooling device with the tanks in elevation represented as stationary and suspended. Fig. 2 is a section of the cooler, exhibiting the milk-pan with a textile fabric wound or bound around the same, and the cover and jet-tube removed, having a bent tube' for filling the cooler substif tuted thereon. Fig. 3 is a top view of a cover exhibiting the glass openings and short tubes for admitting light, also, an opening for the escape of animal heat, and also the perforations around the rim closed with plugs. Fig. 4 is a cross-section of Aa cover, showing the caps for excluding the air and condensing the vapors arising from the milk. It also represents, in dotted lines, a flat and concave crown supported by the central cooling-chamber. Fig.

5 represents our improved cooling device with several coolers operated by one stationary A may indicate elevated or stationary tanks, having flexible or non-iiexible tubing J and L communicating, through the tube L', with the coolers G and C, by means of obstructed cooling supply-pipes 0, located in central coolingchamber G, water from said pipe passing through perforations o, coming in contact with the sides of the cooler thus producing an instantaneous decrease o temperature, and lind- ,ing an exit, through perforations o', into the jet-tube l, from whence the water disseminates over the top of the covers E, I'illin g saidcovers, and also partially submerging the caps j', said caps being provided withgum gaskets j", for excluding air, and finally runs over the rim el, down the sides of the cooler D, over the textile jacket or covering H, into the external cooler O, whence the water rises to the top and finds an outlet in the overflow or waste pipe g. This manner of using the flow of water is adapted to a single or stationary tank, hill-side spring, or reservoir or hydrant.

In using the elevated tanks the water from the jet falls on a textile cover, H', similar to that used on the sides of the pan, iowin g off said cover through perforations e?, (said perforations being closed with rubber or wooden plugs when it is desired to have the lid overiiow,) down the sides of the milk-pan into thc external cooler, thence through a waste-pipe, h, or a coupling discharge-pipe, K, into the trough R, and finally flowing into the lower tank. The coupling-pipe K is a separate pipe passing through the waste-pipe h, and extending up and around the discharge-tube c', which is provided with a plug, j, in the bottom of the milk-pan l), said plug being removed when it: is necessary to draw olf the milk. The cover E is also provided with a neck, e, having sccurely fastened to its top a gum packing to prevent the water from the fountain running into the milk. There is also a large gum gasket or packing, w, which rests on the top of the pan, being held there by the weight of water contained on the top of the cover. When the water overtlowing the cover is allowed to fiets out of the perforation e with consideraescape over the pan and through the bottoni t ble. force against the sides of the cooler (l, inof the cooler thc weight ot' water on the cover presses the gasket lc tiriiily on the rilii ot' the pan, thus making an airtight pan or chamber.

Sometimes it becomes necessary to till the eXtelnal cooler more rapidly than can be aeconrplishcd by thc jettube alone, t'or which purpose we employ a Ushaped tube, 4l, having a faucet, 1I', and handle 12, to regulate or stop the tlow of water.

The niilk-paii covers are constructed with deep rims ll for thc plirpose ot" overlapping the pans a suttcicnt depth, so as to enter the water and make the pans air-tight. lt also prevents the dripping water llowiiig over the same from entering the pan and mixing with the milk.

T represents glass, of any desired l'orm or shape, for admittingr light, and heilig secured either inside. outside, or centrally in the cover.

E2 represents tubes for the escape ot' ani mal heat; but said tubes may be removed, and the openings closed by caps of glass or any other suitable material. with suitable packing for making them air-tight.

e indicates short tubes, having transparent eapsf for admitting light and excluding air.

l represents an internally-tapped square nut, which is attached to arms Q at the bottom of the pan, and allows ot the pan being revolved,when necessary, without disconnecting or disturbing the tubes.

Q represents arms provided with casters or rollers, C', resting on a tioor or table, S,

said arms being secured to the cooler by? means of a squarelheaded nut attached to the same.

Operation: ln the first process ot' cooling fresh-drawn milk, it requires a larger opening for the escape of animal heat than can be at'- t'orded by the small tubes attached to the cover. The cover and jettubes are therefore removed. The bent tube N, being attached to the supply-tube 0, conducts the water over the exposed milk into the coolel, and tills it almost to the top, from whence it tlows oli' through the pipey/ into a tank or elsewhere.

After all the niilk-paiis are llled, the bent tubes N are removed, the cover and jet-tube substituted, and the cooling process is continued by the iet-tube I and the U-shaped tube (l. By this additional supply ot' water enveloping the pans, they become air-tight, the remaining animal heat and vapor escaping through the pipe lii and the short tubes c, the vapor condensing on the under side of the senii-spherical caps oi coversf. and dripping on the textile fabric or cover ll', and tlowing ott' over the sides ot the pan.

When the water enters the pipe t) it tlows against the obstruction in said pipe. and

stantly cooling the sides of the same, and then escaping through the pcrforations o', through a jet or spray tube over the cover ll and over the rim cl or through the perforations c2, down the jacket wound around the milk-pan l), and either ilowing ott' through the waste-pipe h or through the trough lt into the lower tank. When said tank is filled it is hoisted into the saine position as the upper tank occupies by any ordinary devices, not necessary to bc shown 01' described.

0n trst starting the tiow of water, when it is desirable to cool the milk-pan l) niiich faster than can be accomplished by the jettube l` we employ the U-shaped tube d, regulating the water by the faucet d1, operated by handle d2, so that an equal amount of water may tiow through said pipe and jet-tube at the same time, thus reducing the temperature milch more rapidly than when only one tube is used. When it is necessary to remove the icttube or cover, we insert a plug in tube 0, thus stopping the tlow of water in this direction, and also preventing the water from running into the milk-pan. The supply of water flowing from the tanks or from springs, rescrvoirs, or hydrants is regulated by the faucets m. \\'hen it is necessary to skim the milk or wash the pans, the operator grasps the edge of the iiiilk-pan and revolves it slowly in any direction, the cooler C being held trmly by means of the square mit l, attached to the ariii Q, having casters C', supported on a table, platform, or tloor.

11i the winter season, when it is not necessary to employ water to cool the milk, we dispense with the central cooliiig-cliaiiibcr by unscrewing the same and inserting a plug in the bottom oi' the iiiilk-paii, thus giving more room in said pan for the milk.

llaving thus described our invention, the following is what we claim as new aiul desire to secure by Letters latent:

1. The combination of the central tube l with the pipes L L', leading from the water reservoir A and communicating with the ceiltral cooler (l tlirongli the bottoni ot' thcl milkpan.

1.. In a milk-pan. the combination of an internal milk-box with an external cooling-pali extending up level with the cover, and a ict or spray tube cxteiidiig through the center and discharging on top of the box, substantially as shown and described.

3. The combination, with the cooling-pan `of the cover l, having the upwardly-extcnding` rim c, perforated at c2, as and for the purpose set forth.

4. The iiiilk-paii eovcrE,having short tubes c, covered by the glass caps f, for excluding the air and condensing the vapor arising from the niilk, said vapor, when condensed, run

l ning down the sides of the caps onto the cover a faucet, d1, and handle d2, substantially as E, as explained. shown and described. il 5. In a milk-cooler, the central cooling- V. P. HILL. ,f chamber G, provided with au obstructed tube, JOHN SIAS HILL. i O and with Water-inlets o and outlets o substantially as shown and described. 7 Wmsssgnatme of Vamum P Hm' 6. The internally-tapped nut P arms Q and casters C', in combination With a milk REBECCA HILL' pan, as shown and described. Witnesses to signature of John Sias Hill:

7. A central supply-tube, O, having at its OCTAVIUS KNIGHT, lower end a U-shaped tube, d, provided with A. H. GALT. 

